Measure from your C7 vertebrae (the one that sticks out from your neck) down your back in a straight line to the same level as the top of your hip bones. If you're between sizes, it is better to go with the smaller of the two sizes.

Hipbelt Sizing

Men's

Small

Medium

Large

27 - 32in(67 - 80cm)

32 - 37in(81 - 94cm)

37 - 42in(92 - 105cm)

Women's

Small

Medium

Large

25 - 30in(63 - 76cm)

27 - 32in(76 - 88cm)

30 - 35in(88 - 101cm)

Hipbelt Sizing:

These sizes are based upon a measurement 2" (5cm) below the top of the hipbone resulting in 2.5 - 7.5in (6 - 9cm) of separation at the belt front.

Frequently purchased together

Description

A fully-padded pack built for the crag.

From the famed bullet-blue limestone of Ceuse to project sessions at the local sport crag, you can keep your kit stowed in the rock-ready Arc'teryx Miura 45 Backpack. To save
you the struggle of blindly trying to grab gear out of the gaping maw of a top-access pack, the Miura has a surround-zip system that opens the
entire front panel, letting it lie flat so you can easily see,
organize, and access your rack, grub, and crag gear.

There's
an internal gear loop to help you stay organized, and external daisy
chains for extra carrying capacity. You can keep guidebooks and maps
handy in the dual zippered pockets so you don't end up wandering the desert like a climbing Moses, or just dump your gear out and use the Miura as a rope bucket if you'd rather leave the rope bag at the campsite. High-density back panel foam provides the structure to haul heavy loads, breathable and comfortable shoulder straps distribute pressure evenly, and the whole package is wrapped in ultra-rugged nylon so you don't have to worry about tight squeezes, tree branches, and the wear inherent to general dirtbaggery.

Here's what others have to say...

View

sweet cragging pack

Familiarity:
I've put it through the wringer

I was initially worried about the durability of this pack as it is pretty much zipper all the way around with no straps to hold it together, but after a year of use as my go-to crag pack mine is still holding up well. The rubber zipper pulls can be kinda flimsy and will pull off the cord that attaches it to the body of the zipper (there are no metal pull tags on the main body zipper), but you can make your own out of some knotted utility cord.

This is the perfect size for day trips and the way it zips all the way open makes it way easier to fit all your gear in here compared to top-loading packs of similar capacity (not to mention way easier to access it later).

The yellow color seems pretty susceptible to staining and discoloration, so consider buying a darker color if that sort of thing bugs you.

Comment on Nick's review »

From the crag to the alpine

Familiarity:
I've used it once or twice and have initial impressions

It seems like Arc'teryx designed the Miura to get your gear to and from sport crags, so I naturally felt inclined to take it up the Grand Teton and back in a day. In some ways, the Miura is a dream for alpinists. It's light, wears well, leaves room for your harness, and opens completely so you can grab gear quickly and efficiently.

I was surprised at how much gear this pack could actually fit. My short pack stored a twin rope, harness, shoes, helmet, cord, belay device, a puffy, three additional layers, and all the food and water I needed for a fourteen-mile, 6,000-foot, twenty-hour adventure.

Fit to the brim, the Miura can also store my 70M 9.8mm rope, a double rack, my helmet, shoes, harness, belay device, 10 alpine draws, anchors, and water. I'm sure I could still fit extra layers and water without too much hassle.

My only complaint on my alpine trip was that this pack lacks in padding. Granted, Arc'teryx didn't design this pack for long trips up to the alpine, so I shouldn't be upset at the stiff back panel and flimsy waistbelt webbing. I think I may sew a hipbelt on or something. But if you want to go light and fast while still storing a significant amount of gear, the Miura is totally the way to go.

Comment on Derek Newman's review »

Super Functional, a bit Small

Familiarity:
I've put it through the wringer

I went with the 45L because I remember they used to make this in a 50L. Maybe I carry too much stuff and need to plan better before I leave for the crag but, it barely holds my full rack, 70m 9.5 Rope, and 12 draws. I like to bring my sport and the trad gear just in case plans change and many different crags have those options available. If you put the rope and gear in there it definitely wont hold your helmet but, it has outside gear loops to secure that thing on there so its not swinging around like a boy scout. I wish it cinched down as well but, I can and always will carry a smaller actual climbing pack to hold water and such while on longer multi pitch climbs. For taking it to the crag and laying it down its really nice. You can open it like a top loader or a side meaning, you can take out just the rope, or put the trad rack on top and take that out as well. Its more rigid design allows it to stand on its bottom really easily so you can dig through it. I like 2 outside pockets that dont connect, I usually can stuff my harness, chalk bag, and shoes in that. The top pouch is perfect for your guide book that works well. Also when you fully open it, it can act as a tarp as well which is a nice touch. Final thought, great to bring to the crag, not a bag to actually climb with on a multi-pitch route, make your second person carry something that can cinch.